A chic Aniston premieres Just Go with It in N.Y.C. Plus: Alanis Morissette & Ever, Halle Berry, Natalie Portman, Zac Efron and more

STRIDE RIGHT

No rest for the cheery! With wife Katy Perry off promoting her fragrance in Mexico, Russell Brand hits a gym in New York City on Tuesday before heading to rehearsals for Saturday Night Live, which he's hosting this weekend.